Differential pressure generator



FIG. 1 is a perspective bottom view of a differential pressure generator according to the present invention;

FIG. 2 is a front view thereof;

FIG. 3 is a right view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The broken lines shown in the figures are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a differential pressure generator, as shown and described. 